Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

A fantastic castle rumored to be the birthplace of King Arthur.

This tangled English forest looks like something right out of a fairytale.

Remnants of a Victorian garden feature sitting in public woodland.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This once-private estate is now a dreamy, meditative garden that's open to the public.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

An ancient pagan site swirling with legends in the foothills of Franconian Switzerland.

The stones of this formerly witch-obsessed castle were used to build a church.

Crop circles inspired this whimsical garden in Germany.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

The history of German architecture is explored across this fairy-scale mini-city.

This enchanting mountain plateau celebrates spooky local folklore.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

A fearsome dragon clings to a corner of Munich's city hall.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

This 600-year-old home seems to defy physics.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

These 18th century gardens tell a rocky story of the son of Odysseus.